/*
 * ExistServlet.java
 *
 * 6�~10��13�� �P�d�, �U��10:54
 */

package servlet;

import java.io.*;
import java.sql.*;
import util.*;

import javax.servlet.*;
import javax.servlet.http.*;

/**
 *
 * @author HOME
 * @version
 */
public class ExistServlet extends HttpServlet {
    
    /** Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        response.setContentType("text/xml;charset=UTF-8");
        PrintWriter out = response.getWriter();
        response.setHeader("Cache-Control", "no-cache");
        String userID = request.getParameter("userID");
        try {
            Connection con = null;
            boolean exist = false;
            String user = request.getParameter("userID");
            con = ConnectionManager.connect();
            String query = ("select * from member WHERE userID = '"+user+"'");
            Statement stmt = con.createStatement();
            ResultSet rs = stmt.executeQuery(query);
            exist = rs.next();
            out.write("<exist>"+ exist + "</exist>");
            con.close();
        }catch (Exception e) {
            out.println(e);
        }
    }
    
    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /** Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     */
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        processRequest(request, response);
    }
    
    /** Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     */
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        processRequest(request, response);
    }
    
    /** Returns a short description of the servlet.
     */
    public String getServletInfo() {
        return "Short description";
    }
    // </editor-fold>
}
